docs: def session_load(self, hash, fname_session):
          """
          Load ipython session from file
          :param hash: cell hash
          :param fname_session: pathname to dumped session
          :return:
          """
  
          logging.debug('Cell {}: loading session from {}'.format(hash, fname_session))
  
          # 'dill.settings["recurse"] = True',
          # 'dill.settings["byref"] = True',
  
          inject_code = ['import dill',
                         'dill.load_session(filename="{}")'.format(fname_session),
                         ]
  
          inject_cell = nbf.v4.new_code_cell('\n'.join(inject_code))
          super().run_cell(inject_cell)